CVE Vulnerabilities

CVE-2016-0183

Improper Access Control

Published: May 11, 2016 | Modified: Oct 12, 2018
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

The Windows font library in Microsoft Office 2010 SP2, Word 2010 SP2, Word Automation Services on SharePoint Server 2010 SP2, and Office Web Apps 2010 SP2 allows remote attackers to execute arbitrary code via a crafted embedded font, aka Microsoft Office Graphics RCE Vulnerability.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Office_web_apps Microsoft 2010 2010
Sharepoint_server Microsoft 2010 2010
Office Microsoft 2010 2010
Word Microsoft 2010 2010

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References